Abstract : The research focuses on three case studies to characterize how knowledge of dance and choreographic creation is mobilized in different institutions: work sessions between a choreographer and dancers in a context of creation, interventions by a choreographic artist in schools, and school dance practice conducted by an elementary schoolteacher. Our approach is based on a didactic anthropology, based on the Joint Action Theory in Didactics (JATD), which leads us to analyse the transactions of the different actors we observe (choreographers, dancers, teachers, students) in order to understand through the construction of choreographic works, the life of the knowledge that shapes them. It results in characterizing creation as a process of inquiry, from which implies that choreographers and dancers get involved into an inventive milieu. The different case studies we put into perspective lead us to reconsider the conditions and issues of dance teaching and learning in schools, and to argue for a closer relatioship between professional choreographic practices and school practices. In particular, the question of students' experience in creative processes in the school context is questioned here on the basis of an analysis of the actual activity of artists in creative situations. The research raises questions about how artistic practices can be practiced within the school institution. The didactic approach chosen allows us to reconsider the teacher-student relationship in the light of the specificities inherent in these practices.